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1. 发明授权

US11276912B2 Magnetic balun/transformer with post processing adjustments 有权
公开(公告)号：US11276912B2
公开(公告)日：2022-03-15
申请号：US17135451
申请日：2020-12-28
申请人： International Business Machines Corporation
发明人： Sudipto Chakraborty , Rajiv Joshi , Steven J. Holmes , Bruce B. Doris
IPC分类号： H03H7/42 , H03H5/00 , H01P5/10
摘要： A high input impedance magnetic balun/transformer having a phase balancing network (PBN) and method of operating. The balun is fully configurable and trimmable post fabrication using independently adjustable resistive and reactive parts by changing the resistance of a programmed transistor, e.g., NMOS. Parallel connected legs each having a field effect transistors (FETs) that make up NMOS device alter the impedance at the balun output terminals. The ground terminal of a secondary winding or coil at an unbalanced, single-ended side is connected to a phase balancing network. The phase balancing network includes at least two parallel legs, each leg having a resistive element in the form of a transistor device and at least one leg including a capacitive element. The transistor device at a leg can be operated in a linear region to trim the resistance and capacitances at the unbalanced side in order to achieve proper phase balancing and amplitude matching.

2. 发明申请

US20210384604A1 CAVITY-BASED DUAL-BAND FILTERING BALUN 有权
公开(公告)号：US20210384604A1
公开(公告)日：2021-12-09
申请号：US16627764
申请日：2018-10-30
申请人： SOUTH CHINA UNIVERSITY OF TECHNOLOGY
发明人： Yuanchun LI , Xin FANG
IPC分类号： H01P5/10 , H01P1/208
摘要： The invention discloses a cavity-based dual-band filtering balun, which includes a first cavity resonator and a second cavity resonator which are connected by a metal plate, the first cavity resonator is provided with an input PCB board, a metal ground layer of the input PCB board is provided with an input trough line, the other side of the input PCB board is provided with an input microstrip line, and the first cavity resonator is provided with an input slot corresponding to a position of the input trough line; and two opposite outside surfaces of the second cavity resonator which are adjacent to the metal plate are each provided with an output PCB board, metal ground layers of the two output PCB boards are respectively provided with an output trough line, the other sides of the two output PCB boards are each provided with an output microstrip line, and the second cavity resonator is provided with an output slot corresponding to a position of the output trough line and communicated with the output trough line. A main body of the dual-band filtering balun includes two cavity resonators, its structure is high in quality factor and low in insertion loss, and meanwhile, the requirement of two passbands is realized by using two fundamental modes of the cavity resonators, thus reducing a size of a circuit.

3. 发明授权

US11158924B2 LTCC wide stopband filtering balun based on discriminating coupling 有权
公开(公告)号：US11158924B2
公开(公告)日：2021-10-26
申请号：US16627761
申请日：2018-10-30
申请人： SOUTH CHINA UNIVERSITY OF TECHNOLOGY
发明人： Yuanchun Li , Disi Wu
IPC分类号： H01P5/10 , H01Q5/47 , H01P1/202 , H01Q9/04 , H01Q1/52
摘要： The invention discloses a LTCC wide stopband filtering balun based on discriminating coupling. The filtering balun includes a dielectric, and a first resonator, a second resonator, a first feeding line, a second feeding line, a third feeding line and a metal ground which are arranged inside the dielectric. The two resonators are both half-wavelength resonators distributed on different layers, and the layers are connected through metal through holes. the first feeding line is coupled with a specific area of the first resonator for performing feeding to suppress a second harmonic, and the second feeding line and the third feeding line are coupled with a specific area of the second resonator for performing feeding to suppress a third harmonic, thus realizing a wide stopband filtering performance. The second feeding line and the third feeding line are symmetrically arranged about a center of the second resonator, thus realizing a same-amplitude reverse-phase balun output characteristic. The LTCC wide stopband filtering balun based on discriminating coupling according to the invention can suppress the second harmonic and the third harmonic, and a LTCC multi-layer circuit technology used reduces a size of a filtering balun.

4. 发明申请

US20210281236A1 Balun and Method for Manufacturing the Same 有权
公开(公告)号：US20210281236A1
公开(公告)日：2021-09-09
申请号：US17258016
申请日：2018-07-08
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Zhancang Wang , Chen He
IPC分类号： H03H7/42 , H01P3/08 , H01P5/10 , H03H3/00 , H01P5/16
摘要： A balun and a method for manufacturing the same are disclosed. According to an embodiment, the balun comprises a substrate, and a first and a second coplanar waveguide (CPW) couplers which are disposed on the substrate and cascaded with each other. Each CPW coupler comprises two first ground planes disposed on a first side of the substrate, a first microstrip line and at least two second microstrip lines which are disposed on the first side of the substrate between the two first ground planes, and at least one third microstrip line that is disposed on an opposite side of the substrate. The first microstrip line and the at least two second microstrip lines can be coupled with each other by electromagnetic coupling. The at least one third microstrip line electrically connects the at least two second microstrip lines with each other by via-holes.

5. 发明授权

US11101536B2 Device that transitions between a metal signal line and a waveguide including a dielectric layer with a pair of openings formed therein 有权
公开(公告)号：US11101536B2
公开(公告)日：2021-08-24
申请号：US16682025
申请日：2019-11-13
申请人： Wistron NeWeb Corp.
发明人： An-Ting Hsiao , Shun-Chung Kuo , Cheng-Geng Jan
IPC分类号： H01P5/107 , H01P5/10 , H01P3/16 , H01P3/00
摘要： A transition device includes a first metal layer, a signaling metal line, an excitation metal piece, a first dielectric layer, a plurality of conductive via elements, a reflector, and a waveguide. The first metal layer has a notch. The notch extends to the interior of the first metal layer, forming a first slot region. The signaling metal line is disposed in the notch. The excitation metal piece is disposed in the first slot region and is coupled to the signaling metal line. The first dielectric layer has a pair of first openings. The first dielectric layer includes a bridging portion disposed between the first openings. The bridging portion is configured to carry the excitation metal piece. The conductive via elements penetrate the first dielectric layer and are coupled to the first metal layer. The conductive via elements at least partially surround the first slot region.

6. 发明授权

US10911014B2 Electronic component 有权
公开(公告)号：US10911014B2
公开(公告)日：2021-02-02
申请号：US16596891
申请日：2019-10-09
申请人： Murata Manufacturing Co., Ltd.
发明人： Tetsuo Taniguchi , Kiyohiro Kashiuchi
IPC分类号： H03H7/42 , H03H7/01 , H01F27/28 , H01F27/29 , H01F27/40 , H01G4/012 , H01G4/30 , H01G4/40 , H01P5/10
摘要： An electronic component includes a first terminal, a second terminal, a first capacitor electrode, a second capacitor electrode, and a third capacitor electrode. The third capacitor electrode is connected to the first terminal. The first capacitor electrode defines a first capacitor along with the third capacitor electrode. The second capacitor electrode defines a second capacitor along with the third capacitor electrode. The second capacitor electrode is connected to the second terminal. A plurality of dielectric layers include a connection layer where a first portion of the first terminal and a second portion of the second terminal are disposed. An inductance of a path from the second capacitor electrode to the second portion is lower than an inductance of a path from the third capacitor electrode to the first portion.

7. 发明授权

US10910692B2 In-glass high performance antenna 有权
公开(公告)号：US10910692B2
公开(公告)日：2021-02-02
申请号：US16192191
申请日：2018-11-15
申请人： TAOGLAS GROUP HOLDINGS LIMITED
发明人： Vladimir Furlan
IPC分类号： H01Q1/52 , H01Q1/12 , H01Q1/48 , H01Q1/32 , H01Q1/24 , H01Q21/26 , H01Q9/28 , H01Q13/10 , H01Q21/28 , H01Q1/22 , H01P3/08 , H01P5/10
摘要： Disclosed is an antenna including a radiating element, a co-planar ground plane element and a transmission line extending across at least a portion of the radiating element and the ground plane element. The transmission line includes a dielectric layer. The dielectric layer has a portion of a first major surface adjacent to the ground plane and a second major surface opposite and separated from the first surface. A shield is formed on the second major surface. At least one via extends through the dielectric layer to connect the shield to the ground plane. A feed line extends longitudinally through the dielectric layer from a feed point at a proximal end of the transmission line towards a distal end of the transmission line, the feed line being shielded along a portion of its length extending across the ground plane element by the shield with the distal end of the transmission line lying in register with the radiating element and coupling the feed line to the radiating element.

8. 发明授权

US10903544B2 Magnetic balun/transformer with post processing adjustments 有权
公开(公告)号：US10903544B2
公开(公告)日：2021-01-26
申请号：US16394608
申请日：2019-04-25
申请人： International Business Machines Corporation
发明人： Sudipto Chakraborty , Rajiv Joshi , Steven J. Holmes , Bruce B. Doris
IPC分类号： H01P5/10 , H03H7/42 , H03H5/00
摘要： A high input impedance magnetic balun/transformer having a phase balancing network (PBN) and method of operating. The balun is fully configurable and trimmable post fabrication using independently adjustable resistive and reactive parts by changing the resistance of a programmed transistor, e.g., NMOS. Parallel connected legs each having a field effect transistors (FETs) that make up NMOS device alter the impedance at the balun output terminals. The ground terminal of a secondary winding or coil at an unbalanced, single-ended side is connected to a phase balancing network. The phase balancing network includes at least two parallel legs, each leg having a resistive element in the form of a transistor device and at least one leg including a capacitive element. The transistor device at a leg can be operated in a linear region to trim the resistance and capacitances at the unbalanced side in order to achieve proper phase balancing and amplitude matching.

9. 发明申请

US20200343645A1 DIFFERENTIAL SEGMENTED APERTURE 审中-公开
公开(公告)号：US20200343645A1
公开(公告)日：2020-10-29
申请号：US16857713
申请日：2020-04-24
申请人： Battelle Memorial Institute
发明人： Daniel A. Perkins , Daniel G. Loesch , Donald C. Discher , Raphael Joseph Welsh
IPC分类号： H01Q17/00 , H01Q23/00 , H01Q21/06 , H01P5/10
摘要： A radio frequency (RF) aperture includes an interface printed circuit board. An array of electrically conductive tapered projections have bases disposed on a front side of the interface printed circuit board and extend away from the front side of the interface printed circuit board. Chip baluns are mounted on the back side of the interface printed circuit board. Each chip balun has a balanced port electrically connected with two neighboring electrically conductive tapered projections via electrical feedthroughs passing through the interface printed circuit board. Each chip balun further has an unbalanced port, and RF circuitry disposed at the back side of the interface printed circuit board is electrically connected with the unbalanced ports of the chip baluns. The electrically conductive tapered projections include dielectric tapered projections and an electrically conductive layer disposed on an inner or outer surface of the dielectric tapered projections.

10. 发明申请

US20200343614A1 MAGNETIC BALUN/TRANSFORMER WITH POST PROCESSING ADJUSTMENTS 审中-公开
公开(公告)号：US20200343614A1
公开(公告)日：2020-10-29
申请号：US16394608
申请日：2019-04-25
申请人： International Business Machines Corporation
发明人： Sudipto Chakraborty , Rajiv Joshi , Steven J. Holmes , Bruce B. Doris
IPC分类号： H01P5/10 , H03H5/00
摘要： A high input impedance magnetic balun/transformer having a phase balancing network (PBN) and method of operating. The balun is fully configurable and trimmable post fabrication using independently adjustable resistive and reactive parts by changing the resistance of a programmed transistor, e.g., NMOS. Parallel connected legs each having a field effect transistors (FETs) that make up NMOS device alter the impedance at the balun output terminals. The ground terminal of a secondary winding or coil at an unbalanced, single-ended side is connected to a phase balancing network. The phase balancing network includes at least two parallel legs, each leg having a resistive element in the form of a transistor device and at least one leg including a capacitive element. The transistor device at a leg can be operated in a linear region to trim the resistance and capacitances at the unbalanced side in order to achieve proper phase balancing and amplitude matching.

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